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  1. Lustre
  2. LU-14026

symptoms of message loss or corruption after upgrading routers to lustre 2.12.5

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Details

    • Bug
    • Resolution: Incomplete
    • Critical
    • None
    • None
    • lustre 2.10.8 and 2.12.5
      mixed OFED, MOFED, Omnipath, and tcp
    • 3
    • 9223372036854775807

    Description

      We have two router clusters, which we call RELICs, which connect the infiniband SAN in one building with the infiniband SAN in another building, with ethernet between the routers.  All the servers and clients in both buildings, and the router nodes within the clusters which connect to the SAN, are already at lustre 2.12.5.  The routers in the RELIC clusters are at lustre 2.10.8.  In this configuration, the system is stable.

      When we power cycle the RELIC routers and boot them from an image with lustre 2.12.5, the router nodes themselves think everything is fine.  There are no errors or warnings on the console, nor indications of failure in the debug log with +net.  However, we begin to see symptoms on server nodes which seem to indicate corrupt, dropped, or delayed messages:

      LNetError: PPPP:0:(o2iblnd_cb.c:3351:kiblnd_check_txs_locked()) Timed out tx: active_txs, X seconds
      LNetError: PPPP:0:(o2iblnd_cb.c:3351:kiblnd_check_txs_locked()) Timed out tx: tx_queue, X seconds
      LNetError: PPPP:0:(o2iblnd_cb.c:3426:kiblnd_check_conns()) Timed out RDMA with ZZZ@o2ib600 (0): c: X, oc: Y, rc: Z
      LustreError: PPPP:0:(events.c:450:server_bulk_callback()) event type 5, status -103, desc ffffXXXX
      LustreError: PPPP:0:(ldlm_lib.c:3279:target_bulk_io()) @@@ Reconnect on bulk READ...
      LustreError: PPPP:0:(ldlm_lib.c:3285:target_bulk_io()) @@@ network error on bulk READ
      LustreError: PPPP:0:(ldlm_lib.c:3294:target_bulk_io()) @@@ truncated bulk READ 0(1048576) XXX
      Lustre: PPPP:0:(client.c:2133:ptlrpc_expire_one_request()) @@@ Request sent has failed due to network error: ...
      Lustre: ls1-OST000e: Bulk IO read error with XXX (at ZZZ@o2ib36), client will retry: rc -110
      

      along with side-affects such as reconnect attempts.

      Attachments

        1. 2020-oct-14-copper1.tgz
          12.62 MB
          Olaf Faaland
        2. 2020-oct-14-orelic.tgz
          36.73 MB
          Olaf Faaland
        3. 2020-oct-14-zrelic.tgz
          22.32 MB
          Olaf Faaland
        4. 2022-sep-07.lu14026.tgz
          287 kB
          Olaf Faaland
        5. lu-14026.2021-04-28.tgz
          3.80 MB
          Olaf Faaland

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              ssmirnov Serguei Smirnov
              ofaaland Olaf Faaland
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              Dates

                Created:
                Updated:
                Resolved: